Erysimum plant named ‘Doerywaci’

ABSTRACT

A new and distinct cultivar of Erysimum plant named ‘Doerywaci’, characterized by its compact, upright and mounding plant habit; moderately vigorous growth habit; freely branching habit; dense and bushy habit; freely and continuous flowering habit; long flowering period; large light to bright yellow-colored flowers; tolerance to low and high temperatures and good garden performance.

Botanical designation: Erysimum hybrida.

Cultivar denomination: ‘DOERYWACI’.

STATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR & APPLICANT/ASSIGNEE

An European Community Plant Breeder's Rights application for the instantplant was filed by the Applicant/Assignee, Dümmen Group B.V. of De Lier,The Netherlands on Jun. 1, 2021, application number 2021/1408. Foreignpriority is not claimed to this application.

The Inventor and Applicant/Assignee assert that no publications noradvertisements relating to sales, offers for sale or public distributionoccurred more than one year prior to the effective filing date of thisapplication. Any information about the claimed plant would have beenobtained from a direct or indirect disclosure from the Inventor and/orApplicant/Assignee. Inventor and Applicant/Assignee claim a prior artexception under 35 U.S.C. 102(b)(1) for disclosure and/or sales prior tothe filing date but less than one year prior to the effective filingdate.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Erysimumplant, botanically known as Erysimum hybrida, commonly referred to asWallflower and hereinafter referred to by the name ‘Doerywaci’.

The new Erysimum plant is a product of a planned breeding programconducted by the Inventor in Aalsmeer, The Netherlands. The objective ofthe breeding program was to develop new compact Erysimum plants withnumerous large and attractive flowers.

The new Erysimum plant originated from a cross-pollination in February,2017 in Aalsmeer, The Netherlands of a proprietary selection of Erysimumhybrida identified as code number ER16-000001-029, not patented, as thefemale, or seed, parent, with a proprietary selection of Erysimumhybrida identified as code number ER16-000001-023, not patented, as themale, or pollen, parent. The new Erysimum plant was discovered andselected by the Inventor as a single flowering plant within the progenyof the stated cross-pollination in a controlled greenhouse environmentin Aalsmeer, The Netherlands in April, 2018. Asexual reproduction of thenew Erysimum plant by vegetative terminal cuttings in a controlledgreenhouse environment in Aalsmeer, The Netherlands since May, 2018 hasshown that the unique features of this new Erysimum plant are stable andreproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Erysimum have not been observed under all possiblecombinations of environmental conditions and cultural practices. Thephenotype may vary somewhat with variations in environmental conditionssuch as temperature and light intensity without, however, any variancein genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘Doerywaci’. These characteristics incombination distinguish ‘Doerywaci’ as a new and distinct Erysimumplant:

-   -   1. Compact, upright and mounding plant habit.    -   2. Moderately vigorous growth habit.    -   3. Freely branching habit; dense and bushy habit.    -   4. Freely and continuous flowering habit.    -   5. Long flowering period.    -   6. Large light to bright yellow-colored flowers.    -   7. Tolerant to low and high temperatures and good garden        performance.

Plants of the new Erysimum differ primarily from plants of the femaleparent selection in flower color as plants of the new Erysimum havelight to bright yellow-colored flowers whereas plants of the femaleparent selection have orange and purple-colored flowers.

Plants of the new Erysimum differ primarily from plants of the maleparent selection in flower color as plants of the new Erysimum havelight yellow to bright yellow-colored flowers whereas plants of the maleparent selection have pastel yellow and pink-colored flowers.

Plants of the new Erysimum can be compared to Erysimum hybrida ‘PoemPastel’, not patented. In side-by-side comparisons, plants of the newErysimum differ from plants of ‘Poem Pastel’ in the followingcharacteristics:

-   -   1. Plants of the new Erysimum are more compact than plants of        ‘Poem Pastel’.    -   2. Plants of the new Erysimum have larger flowers than plants of        ‘Poem Pastel’.    -   3. Flowers of plants of the new Erysimum are light to bright        yellow in color whereas flowers of plants of ‘Poem Pastel’ are        pastel pink and yellow in color.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearanceof the new Erysimum plant showing the colors as true as it is reasonablypossible to obtain in colored reproductions of this type. Colors in thephotograph may differ slightly from the color values cited in thedetailed botanical description which accurately describe the colors ofthe new Erysimum plant. The photograph is a top perspective view of atypical flowering plant of ‘Doerywaci’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations andmeasurements describe plants grown in 17-cm containers in aglass-covered greenhouse in Aalsmeer, The Netherlands and under culturalpractices typical of commercial Erysimum production. During theproduction of the plants, average daily temperatures were 21° C. andaverage night temperatures were 15° C. Plants were 22 weeks old when thephotograph and description were taken. In the following description,color references are made to The Royal Horticultural Society ColourChart, Second Edition, except where general terms of ordinary dictionarysignificance are used. Measurements were taken on individual plants.

-   Botanical classification: Erysimum hybrida ‘Doerywaci’.-   Parentage:    -   -   Female, or seed, parent.—Proprietary selection of Erysimum            hybrida identified as code number ER16-000001-029, not            patented.        -   Male, or pollen, parent.—Proprietary selection of Erysimum            hybrida identified as code number ER16-000001-023, not            patented.-   Propagation:    -   -   Type.—Terminal vegetative cuttings.        -   Time to initiate roots, summer.—About twelve days at            temperatures about 26° C.        -   Time to initiate roots, winter.—About 16 days at            temperatures about 23° C.        -   Time to produce a rooted young plant, summer.—About 16 days            at temperatures about 23° C.        -   Time to produce a rooted young plant, winter.—About 20 days            at temperatures about 18° C.        -   Root description.—Medium in thickness, fibrous; typically            white in color, actual color of the roots is dependent on            substrate composition, water quality, fertilizer type and            formulation, substrate temperature and physiological age of            roots.        -   Rooting habit.—Moderately freely branching; medium density.-   Plant description:    -   -   Plant form and growth habit.—Perennial garden or container            plant; compact, upright to mounding plant habit; freely            branching habit with about 23 lateral branches developing            per plant; dense and bushy appearance; moderately vigorous            growth habit and moderate growth rate.        -   Plant height.—About 22 cm.        -   Plant diameter (area of spread).—About 22 cm.        -   Lateral branches.—Length: About 16 cm. Diameter: About 4 mm.            Internode length: About 3 mm. Strength: Strong. Aspect:            Upright to about 45° from vertical. Texture and luster:            Smooth, glabrous; glossy. Color, developing and developed:            Close to 144A.-   Leaf description:    -   -   Arrangement.—Alternate; simple; sessile.        -   Length.—About 7.5 cm.        -   Width.—About 1.5 cm.        -   Shape.—Narrowly oblanceolate with lanceolate tendencies.        -   Apex.—Acute.        -   Base.—Cuneate.        -   Margin.—Entire with some serrations.        -   Texture and luster, upper and lower surfaces.—Sparsely            pubescent; semi-glossy.        -   Venation pattern.—Single midvein discernible.        -   Color.—Developing leaves, upper surface: Close to 137A.            Developing leaves, lower surface: Close to 138A. Fully            developed leaves, upper surface: Close to 137B; venation,            close to 144B. Fully developed leaves, lower surface: Close            to 138B; venation, close to 138B.-   Flower description:    -   -   Flower type and habit.—Large rounded cruciform flowers            arranged in dense racemes; flowers face mostly upright;            freely flowering habit, about ten flowers per inflorescence            and about 312 flowers developing per plant.        -   Natural flowering season.—Relatively long flowering period;            plants flower continuously from spring until autumn in The            Netherlands; flowers not persistent.        -   Fragrance.—Moderately fragrant; sweet, pleasant.        -   Inflorescence height.—About 7 cm.        -   Inflorescence diameter.—About 4.5 cm.        -   Flower diameter.—About 2 cm.        -   Flower depth (height).—About 1.2 cm.        -   Flower buds.—Length: About 6 mm. Diameter: About 5 mm.            Shape: Elliptic. Texture and luster: Smooth, glabrous;            matte. Color: Close to 9A.        -   Petals.—Quantity and arrangement: Four petals arranged in a            single whorl. Length: About 1 cm. Width: About 1.4 cm.            Shape: Roughly spatulate. Apex: Obtuse. Base: Cuneate.            Margin: Entire, slightly undulate. Texture and luster, upper            and lower surfaces: Smooth, glabrous; matte. Color: When            opening, upper and lower surfaces: Close to 12A. Fully            opened, upper surface: During development, flowers            transition through the following colors, close to 12A, 12C            and 12D; venation, similar to lamina colors. Fully opened,            lower surface: During development, flowers transition            through the following colors, close to 12B, 158B and 158C;            venation, similar to lamina colors.        -   Sepals.—Quantity and arrangement: Four sepals arranged in a            single whorl; calyx, tubular. Length: About 1 cm. Width:            About 3 mm. Shape: Subulate. Apex: Acuminate. Base: Cuneate.            Margin: Entire. Texture and luster, upper surface: Smooth,            glabrous; matte. Texture and luster, lower surface: Smooth,            glabrous; semi-glossy. Color, upper and lower surfaces:            Close to 144B.        -   Pedicels.—Length: About 8 mm. Width: About 1 mm. Strength:            Flexible. Aspect: About 45° from peduncle axis. Texture and            luster: Smooth, glabrous; semi-glossy. Color: Close to 143A.        -   Reproductive organs.—Stamens: Quantity per flower: Six.            Filament length: About 9 mm. Filament color: Close to 145C.            Anther shape: Elliptic; dorsifixed. Anther size: About 1 mm            by 3 mm. Anther color: Close to 145C. Pollen amount:            Abundant. Pollen color: Close to 158A. Pistils: Quantity per            flower: One. Pistil length: About 9 mm. Style length: About            2 mm. Style color: Close to 144A. Stigma diameter: About            2 mm. Stigma shape: Rounded, capitate. Stigma color: Close            to 144C. Ovary color: Close to 155D. Seeds: About 20 seeds            per flower develop.-   Pathogen & pest resistance: To date, plants of the new Erysimum have    not been noted to be resistant to pathogens or pests common to    Erysimum plants.-   Garden performance: Plants of the new Erysimum have been observed to    have good garden performance and to tolerate temperatures ranging    from about −20° C. to about 35° C. and suitable for U.S.D.A.    Hardiness Zone 6.

It is claimed:
 1. A new and distinct Erysimum plant named ‘Doerywaci’ asillustrated and described.